Reamer



UNITED STATES PATENT OFFICE.

LOREN S LASSEN, OF MANCHESTER, CONNECTICUT.

REAM ER.

SPECIFICATION forming part of Letters Patent No. 393,767, dated December4, 1888.

Application filed September 21, 1888. Serial No. 285,985. (No model.)

To all whom it may concern.-

Be' it known that I, LORENs LASSEN, a subject of the Emperor of Germany,and a resident of Manchester, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inBeamers, of which the following is a full, clear, and exact description,whereby any one skilled in the art can make and use the same.

The object of my invention is to provide a i l l in the reamer-stock. i

I i l reamer that may be readily adapted for use 1n variousreamer-stocks, and one that is adjustable and interchangeable and thatcan be kept true to gage with but a little labor.

My invention consists in the combination of a blade-carrier having ablade-clamp and blade-adjnsting device and a reamer-stock in which theblade-carrier is adapted to be secured.

It further consists in details of the bladecarrier, the blade-clamp, andthe reversible blade and the adjusting device; and it further consistsin details of the several parts of the device and their combination, asmore particularly hereinafter described, and pointed out in the claims.

Referring to the drawings, Figure 1 is a .a

side view of a reamer-stock fitted with my improved reamer. Fig. 2 is adetail view in central cross-section through the reamer-stock and inedge view of the reamer. Fig. 3 is a detail view in lengthwise sectionthrough the reamer-stock and in side view of the reamer. Fig. 4 is adetail view, on enlarged scale, in cross-section through the reamer.

In the accompanying drawings, the letter Ct denotes a reamer-stock, thatmay be of any convenient size, determined by the special work to bedone, and this reamer-stock is provided with a reamer-socket, a locatedtransversely of the stock, and preferably passing through the axisthereof. A portion of the stock on one side is cut away, as at a to giveaccess to the blade-clamping screw, that is borne in the side of theblade-carrier of the reamer. This blade-carrier l) is a block of suitable material, as steel, cut down in thickness on one end to provide ablade-socket, b, and carrying an adjusting-screw, c, that is seated in athreaded socket lengthwise of the carrier in such manner that the headof the screw is presented at one end of the blade-carrier in convenientposition to be reached by a screw-driver when the blade-carrier is heldThe blade (I is a flat piece of tool-steel held in the blade-socket inthe carrier by means of a blade-clamp, e, that is a screw passingthrough a filling-piece, f, through a screw-slot, a, in the blade, andtakes into a threaded socket in the carrier. Whcn the several parts ofthe reamer are assembled, the blade is clamped in place in the carrierwith its cutting edge pro j ecting a suitable distance beyond the edge,as shown in the drawings, the filling-piece f serving not only as partof the clamp device, but also as a means of backing up the cutter, asthis piece fits snugly against the walls of the socket in thereamer-stock. The inner edge of the blade rests upon the end of theadjusting-screw c, and is in part held by such screw against anylengthwise movement, although the main holding or clampin of the bladeis effected by means of the clamp-screw.

As a convenient method of securing this reamer in the reamer-stock, oneedge of the carrier is indented, so as to leave the ends with anoverhang that fits into corresponding sockets in the stock, and the saidsocket is wide enough to permit the introduction of the blade of thecarrier, that is then moved sidewise until one edge of the carrierengages the side socket, and a key, g, is then used to hold theb'lade-carri or b firmly in the reamer-socket. I do not, however, limitmyself to any special or particular means of holding the blade-carrierof the reamer in place. An additional means of securing theblade-carrier in the reamer-stock is by means of a screw, h, seated in athreaded socket in the stock at right angles to the blade-carriersocket, so that its inner end may be made to bite upon the bladecarrier.

I claim as my invention 1 In combination with a reamer-stock, a removable bl ade-carrier h av in g a blad e-clamp, and a blade-ad j u sting device and a blade held 1' insaid carrier, all substantially asdescribed. 2. In combination with a blade-carrier, l), 5 having ablade-socket and adjustable blade held by a clampin device at one end ofthe blade-carrier, the clamping device and the adjusting-screw borne inthe blade-carrier, all substantially as described.

$3. In combination with the blade-carrier 7), scribed, for securing it:in the reanler-stock, having the blade-socket I), the adjustable theblade-carrier 1;,withthe blade-socket, the blade (7, the clamp device 0,with filling-piece adjustable blade, the blade-clamp, and the f, and thebhldeadjusting screw (1, with its blade-adjusting device, allsubstantially as 5 head presented at the edge of the blade-cardescribed.

rier oppositethebladc. all substantially as dc- OR T \QQF T scribed VA'14 ii .44 A L Ji 4:. In combination with a rea1ner-st0ck,a, \Vitnesscs:having a blade-carrier socket, (if, a removable i (HAS. L. BURDETT,

A. 'B. JENKINS.

1o blade-carrier, with means, substantially as de-

